Cylinder for wooden pumps



J.- LAV'TOURETTEL .(No Model.)

QM p m H P n e.

Patented June 14., 1881..

. Fig.1.

UNITED STATES PATENT OFFICE.

JAMES LA TOURETTE, OF ST. LOUIS, MISSOURI.

CYLINDER FOR WOODEN PUMPS.

SPECIFICATION forming part of Letters Patent No. 242,781, dated June 14,1881. Application filed February 28, 1881. (No model.)

To all whom it may concern Be it known that I, JAMES LA TOURETTE, of St.Louis, Missouri, have made a new and useful Improvement in Cylinders forWooden Pumps, of which the following is a full, clear, and exactdescription, reference being bad to the annexed drawings, making part ofthis specification, in which- Figure 1 is a longitudinal section takenthrough the cylinder and the tube in which the cylinder is immediatelyheld; Fig. 2, a detail, bcin g a sectional view upon an enlarged scale,showing a portionof the upper end of the cylinder and of the adjacenttube; Fig. 3, a detail, being a sectional view upon an enlarged scale,showing a portion of the lower end of the cylinder and of the adjacenttube; and Fig. 4, a cross-section taken on the line as w of Fig. 1.

The same letters denote the same parts.

In the manufacture of wooden pumps it is customary to insert a metalliccylinder in the wooden tubing.

The present invention relates to the mode of constructing the cylinderin question, and especially the upper and lower ends thereof, the aimbeing to provide an improved means for securing the cylinder in itsplace in the tube, and also for packing it therein, so that the watershall not' leak between the cylindershell and the surrounding tube.

.It consists in the sharpened flange extending around the upper end ofthe cylinder, and in the beveled or sharpened lower end of the cylinder,substantially as shown in the drawings, where- A represents the metalliccylinder, it being of the usual description, saving as modified by thepresent improvement.

B represents the section of wood tubing in which the cylinder isinserted. The cylinder, at its lower end and upon its inner side, isbeveled, as shown at a, Fig. 1, and more distinctly in Fig. 3. At itsupper end and upon its outer side the cylinder is provided Willi aflange, a, which extends around the cylinder, and is sharpened 0rpointed, as shown in Fig. 1, and more distinctly in Fig. 2. Thebore ordiameter of the tube B, at the point wherethe cylinder is to be placed,is enlarged to receive the cylinder, the diameter of the enlarged partbeing slightly larger than the external diameter of the main portion ofthe cylinder, as seen at 12, Figs. 1 and 4. This forms ashonlder orseat, 11, in the tube, against orin which the lower end of the cylinderrests. The enlarged part of the tube-bore, however, is in diameter lessthan the diameter of the cylinder-flange a. The cylinder is forced intoits place in the tube, its lower end encountering the seat 1). Owing tothe bevel a the cylinder end becomes embedded in the wood, which isforced inwardly, as shown at- W, Figs. 1 and 3, and serving not only tokeep the cylinder from dropping downward, but also to pack the jointbetween thelower end of the cylinder and the tube. As the cylinder isforced into place the flange a cuts into the wood of the tube. It theflange were wider at its edge, the tube would be apt to split; but fromthe flange being sharpened, as described, the fibers of the wood, inpractice, bend inward around the flange, as seen more distinctly in Fig.2, without injury to the tube; and the flange serves both to hold thecylinder down in its place in the tube and also to prevent the waterfrom leaking past the upper end of the cylinder, between the cylinderand tube.

I am aware that a sheet-metal lining has heretofore. been secured in awooden pumpstock by first cutting grooves in the stock and thenputting'the lining in the stock and swaging its ends into the grooves.

I claim- 1. In combination with the wooden tube B, the cylinder A,having the flange a extended and sharpened, and having its lower endbeveled at a, as and for the purposes described.

2. In combination with the wooden tube B, having the seat I), thecylinder A, having its end beveled at a, as and for the purposesdescribed.

3. As a new manufacture, the cylinder A, having the beveled end a, andthe flange a, extended and sharpened, as de cribed.

4. ln inserting in wooden pump-stocks metallic cylinders having asharpened flange extending around the same, the mode of securing thecylinders in place and producing a water-tight joint at the flange,which consists in boring out the stock to a diameter slightly lessthauthat of the cylinder-flange, and then forcing the cylinder in place,so that the wood will be bent inward around the flange, substantially asdescribed.

JAMES LA TOUBETTE.

. Witnesses:

OHAs. D. MOODY, SoLoN N. SAPP.

